「HAPPY 4TH BIRTHDAY WEB-SLINGER IN TRAINING」は FontVibe AI で作成したバースデーの文字エフェクトです。白フチのくっきりした虹色ストライプの丸い大文字。紙吹雪と風船の束に囲まれ、ピンクからターコイズへの鮮やかなパーティー背景。

Create a finished, wide horizontal fourth-birthday party banner with a playful spider-superhero theme. Use a rich, saturated hot-pink-to-tangerine gradient background with vivid turquoise accents; keep it bright, cheerful and high-contrast, never pale or muddy. Across the center, set the exact headline “HAPPY 4TH BIRTHDAY” in very large, uppercase Party Pop lettering: firm, structured geometric forms, near-square proportions, even heavy strokes, open counters and tight, regular spacing. Give the letters a glossy saturated coral finish, a single clean highlight, a crisp white keyline and a soft drop shadow. Keep the lettering sharp and legible, not inflated, balloon-like or rainbow-colored. Below the headline, set the exact supporting line “WEB-SLINGER IN TRAINING” in smaller, bold uppercase lettering, centered and clearly readable. Surround the text with a generous burst of colorful confetti, bright sparkles and small light streaks. Cluster glossy balloons near the outer left and right edges. Add fine, graphic spiderweb strands radiating from the upper corners and a small friendly stylized spider emblem as a decorative focal detail below the headline; use a generic original motif, not a recognizable character, logo or costume. Keep decorations around the text rather than over it. Balanced banner composition, central type hierarchy, cheerful party energy, polished print-ready finish. Render only the two quoted text lines exactly as written; no extra wording.